Sukunthamala, K., S. Khamhae, W. Chaichana, and S. Pornprasert. “Prevalence of thalassemia, G-6-PD deficiency, and iron deficiency among pregnant women at the Chiang-Mai Health Promoting Hospital”. Journal of Associated Medical Sciences, vol. 38, no. 3, Mar. 2015, p. 193, https://he01.tci-thaijo.org/index.php/bulletinAMS/article/view/60209.